Hi,

just experienced crash during indoor (not fixed GPS) fun flying with DJI NEO connected to Goggles 3 + RC Motion 3 as DJI NEO was accelerating itself which cause crashing...
Never experienced that before with any other drone!
Distance 1-2 meter from Goggles so no issue with loosing of signal.

Lates firmware installed everywhere:

• DJI Neo Firmware: V01.00.0200
• DJI Goggles 3 Firmware: V01.00.0400
• DJI RC Motion 3 Firmware: V01.00.0200
  

You are not having much luck with this new drone... And the other one did land in the water...

https://forum.dji.com/forum.php?mod=viewthread&tid=317852

Looks like DJI has some work to do...

Burt37 Posted at 9-16 01:10
You are not having much luck with this new drone... And the other one did land in the water...

https://forum.dji.com/forum.php?mod=viewthread&tid=317852

Correct, this one is replaced NEO already and so far it seems that DJI Care is a must for this little buddy
Hopefully our feedback will help to improve this NEO model as there still some issues which needs to be fixed. Acceleration itself is just not acceptable and very strange behavior...

Hi there,
thank you for reaching out.

We are sorry for the accident that happened to your DJI Neo. Could you please let me know if the drone sustained any damages from the accident?

Please keep us posted.

DJI Diana Posted at 9-16 02:54
Hi there,
thank you for reaching out.

Hi Diana,

No, this time luckily no damages at all and Neo is fully operational ;-) But this self accelerating needs to be fixed asap...

This is likely due to low light inside and the VPS on the NEO doesnt perform as well as other DJI drones - something similar happened to me in Drone Camera mode using the conroller
You need bright light indoors for this to work right currently- others have noticed same

JMX46 Posted at 9-16 03:51
This is likely due to low light inside and the VPS on the NEO doesnt perform as well as other DJI drones - something similar happened to me in Drone Camera mode using the conroller
You need bright light indoors for this to work right currently- others have noticed same

Yes, that's correct statement but why is accelerating like hell instead of slowing down or hovering in place.
It has still gyro data about movement so why want to suicide itself by maximizing the speed and crash?

Iczeman Posted at 9-16 07:30
Yes, that's correct statement but why is accelerating like hell instead of slowing down or hovering in place.
It has still gyro data about movement so why want to suicide itself by maximizing the speed and crash?

I bumped my avata 2 flying indoors, basically the drone GNSS signal didnt work and it was at night, and it started accelerating forwards while it should have been hovering, cracked a flower pot.

The same thing happened to me. No GPS (indoor), artificial light and the pattern of the floor may play a role. I hope the error will be fixed soon and there really won't be any problems outdoors.

Perhaps the solution is to fly the drone where the lighting and flooring is suitable, if the lighting is poor and/or the floor pattern not distinctive then the VPS system can not work and the drone can not hold position. In those circumstances I am not sure if it will actively brake when the sticks are centred and if it doesn't then any residual horizontal speed will take time to bleed off.

Hi,

Interesting to see your flightlog for this issue.
Why? if flight is started without GPS and GPS comes alive....it may cause acceleration.

If you like upload your log using > https://www.phantomhelp.com/LogViewer/Upload/
Post the uploaded link on here

cheers
JJB

In the Flight Data Center on my mobile phone I can see the warning "Fly with caution (No satellit..." right bevore the crash. I can't find where the flight log ".txt"? is stored.

I just uploaded the video. It was really low light in the room where it accelerated:
https://youtu.be/ObICD6gUO5c

Today I testet at daylight indoor with no problems.

DJI Diana Posted at 9-16 02:54
Hi there,
thank you for reaching out.

I think DJI may need to look into software while the drone is indoor..... I once had it in palm mode using DirectionTrack, it accelerate and drifted all in a sudden and crashed into a wall.... the gimble is misplaced.... very scary...

This also happened to me 2 days ago - after the update V01.00.0300 from September 29th, 2024. This should actually make things better.
However, in the empty hall I had good lighting conditions and a well-structured subsurface. The remote control was the RC N3.
The switching back and forth between P-GPS and ATTI mode, even though there are no satellites, must be solved, DJI

Iczeman Posted at 9-16 07:30
Yes, that's correct statement but why is accelerating like hell instead of slowing down or hovering in place.
It has still gyro data about movement so why want to suicide itself by maximizing the speed and crash?

Well, the issue, as I understand it, is that under those conditions the visual sensors don't work so the drone doesn't know it's position and speed. So it technically isn't possible for it to hover in place, it doesn't know what hovering in place even means. From what I read, what happens is that the drone reverts to an absolute angle based control system and it's this that leads to a loss of control/sudden unexpected acceleration.

I'm not an expert, but it sounds like a tricky problem to fix. Perhaps it would be better in these circumstances to have an option to slowly power down the drone instead. With the neo a crash landing might be more desirable than the alternative.

Maybe DJI could add some ATTI or similar mode?

But why does it no longer accept control commands in this state?

djiuser_5GX1SK6oJv61 Posted at 10-12 05:28
But why does it no longer accept control commands in this state?

No real idea. Just a guess based on my one flying indoors from adequately lighted to a too apparently too dark area resulting  the Neo accelerating without any input.  Optical sensor (camera) and IR (bottom two sensors) lost input due to low light and software issue resulted in controller loss of signal.

If hardware allows for a firmware update to allow flying in "ATTI mode" option.    Not having any hover, stabilization beats not having any control in lower light conditions.   Would also allow for flying over highly reflective surfaces such as water for those willing to risk loss of their Neo.

I have compared a RC neo and MC neo. RC is fine in low light indoor， MC will suddenly accelerate and hit the wall uncontrollably under the same condition

then at outdoor it will flyaway with MC??

relaxosmo Posted at 12-6 05:31
then at outdoor it will flyaway with MC??

DJI spec note minimum 15 LUX of lighting. Most outdoors daytime lighting should be adequate. Very limited experience using the MC3 and Neo.  So far, using the FPV RC3 the Neo has flown fine even into moderately to heavily shaded areas in S mode.

JMHO, it is not the controller that is an issue.  MC3 and FPV RC3 transmits their inputs to the Goggles3 which then relays the inputs to the Neo.  Very much doubt if the signals from the controller to the Goggles3 or Goggles3 to Neo are different.   It is the Neo's IR sensors that are an issue.

Flew the Neo yesterday indoors for the first time in months using the MC3 in N mode.  Well lighted room. Zero to 1 satellite acquired. Avoid heavy shadowed area.  Couple other previous flights into shadows resulted in the Neo flying away by itself with no input connection.